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首页> 外国专利> The mode field diameter conversion fiber, manner in order alteration the index of refraction of the optical wave guide locally, and manner in order to produce the preform of the optical wave guide

The mode field diameter conversion fiber, manner in order alteration the index of refraction of the optical wave guide locally, and manner in order to produce the preform of the optical wave guide

机译：模场直径转换光纤，用于局部改变光波导的折射率的方式，以及用于制造光波导的预制棒的方式

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(57) Abstract This invention, the fiber emission collimator, the optical wave guide coupler, the spectrum filter, the optical insulating device, the long cyclic grid, the distributed compensator, is based on the Raman effect which simulation is done in regard to huaibaoputeikusu, the cascade mode field diameter exchange fiber, the physical value sensor, and it is possible in emission suppression unit concerning the wavelength which is decided beforehand, to utilize in order graduation the gain spectrum inside the erbium fiber amplifier. This invention makes the optical wave guide and the production of the equipment which is based on those easy. In order the optical wave guide (1) to produce the preform of for the sake of with plasma chemical vapor deposition manner, as for the numerator condition vapor operation material which is supplied to the substrate tube (24), the oxygen atom of 5 red full falls on each all silicon atom, is mixed in the kind of form where the nitrogen atom which is more than one in every 1000 oxygen atoms falls. Index of refraction alteration locally the optical wave guide of a certain length by heating (1). In this way, the core (3) the cladding of the element which is included inside (2), or the local thermomigration to the converse direction pulls to inside and is caused. The optical wave guide of a certain length (1) is heated with the electric current of the arc (10), or by the emission (16) of the infrared ray laser (15). The core (3) from 0.01 at.% at the concentration of 5 at.% dopes with nitrogen. Inside the mode field diameter conversion fiber, the core (3) diameter changes, paralleling to the optical wave guide of a certain length, increases facing toward that destal (4).
机译：（57）<摘要>本发明的光纤发射准直器，光波导耦合器，光谱滤波器，光绝缘装置，长周期网格，分布式补偿器是基于拉曼效应而进行仿真的。对于huaibaoputeikusu，级联模式场直径交换光纤，物理值传感器，以及在发射抑制单元中可以预先确定与波长有关的阶跃利用graduation光纤放大器内部的增益谱。本发明使基于这些的光波导和设备的制造变得容易。为了使光波导（1）以等离子化学气相沉积的方式制备预成型坯，向基板管（24）供给的分子条件的气相操作材料为5个红色的氧原子。每个硅原子上全部落下，以每1000个氧原子中一个以上的氮原子掉落的形式混合。通过加热（1）局部改变一定长度的光波导的折射率。这样，芯（3）被包埋在（2）内部的元件的包层或向相反方向的局部热迁移被拉向内部。一定长度的光波导（1）被电弧（10）的电流或红外线激光器（15）的发射（16）加热。浓度为5 at。％的0.01 at。％的核（3）用氮掺杂。在模场直径转换光纤内，与一定长度的光波导平行的纤芯（3）直径朝着底座（4）方向变化。

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